Communication system and control system

ABSTRACT

A communication system includes a first communication device, a second communication device and a third communication device. The first communication device is configured to be connected to an operating device mounted on a human-powered vehicle. The second communication device is configured to be connected to a transmission device of the human-powered vehicle. The third communication device is configured to be connected to a component that is mounted on the human-powered vehicle and that differs from the operating device and the transmission device. The second communication device is configured to receive first information that is sent from the first communication device in response to operation of the operating device. The third communication device of the component is configured to receive second information that includes at least some of the first information sent from the second communication device.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Japanese Patent Application No.2020-116591, filed on Jul. 6, 2020. The entire disclosure of JapanesePatent Application No. 2020-116591 is hereby incorporated herein byreference.

BACKGROUND Technical Field

The present invention generally relates to a communication system and acontrol system for human-powered vehicles.

Background Information

Some human-powered vehicles are provided with a communication devicethat is configured to perform communications between components.Japanese Laid-Open Patent Publication No. 2018-39466 discloses anexample of a bicycle component including a communication deviceconfigured to perform communication in response to operation of anoperating portion.

SUMMARY

One object of the present disclosure is to provide a communicationsystem and a control system that perform appropriate communication inhuman-powered vehicles.

In accordance with a first aspect of the present disclosure, acommunication system comprises a first communication device a secondcommunication device and a third communication device. The firstcommunication device is configured to be connected to an operatingdevice mounted on a human-powered vehicle. The second communicationdevice is configured to be connected to a transmission device of thehuman-powered vehicle. The third communication device is configured tobe connected to a component that is mounted on the human-powered vehicleand differs from the operating device and the transmission device. Thesecond communication device is configured to receive first informationthat is sent from the first communication device in response tooperation of the operating device. The third communication device of thecomponent is configured to receive second information that includes atleast some of the first information sent from the second communicationdevice. The communication system according to the first aspect allowsthe first communication device connected to the operating device toappropriately communicate with the second communication device connectedto the transmission device and the third communication device connectedto the component.

In accordance with a second aspect of the present disclosure, thecommunication system according to the first aspect is configured so thatthe component includes a motor device configured to apply a propulsionforce to the human-powered vehicle. The communication system accordingto the second aspect allows the first communication device connected tothe operating device to appropriately communicate with the secondcommunication device connected to the transmission device and the thirdcommunication device connected to the motor unit.

In accordance with a third aspect of the present disclosure, thecommunication system according to the first or second aspect isconfigured so that the first information conforms to the secondinformation. The communication system according to the third aspectperforms appropriate communication.

In accordance with a fourth aspect of the present disclosure, thecommunication system according to the third aspect is configured so thatthe first information and the second information include at least one ofinformation related to the transmission device and information relatedto the component. The communication system according to the fourthaspect performs appropriate communication.

In accordance with a fifth aspect of the present disclosure, thecommunication system according to the third aspect is configured so thatthe first information and the second information include informationrelated to the transmission device and information related to thecomponent. The communication system according to the fifth aspectperforms appropriate communication.

In accordance with a sixth aspect of the present disclosure, thecommunication system according to the first or second aspect isconfigured so that the first information includes information related tothe transmission device and information related to the component. Thesecond information includes only information related to the component.The communication system according to the sixth aspect performsappropriate communication.

In accordance with a seventh aspect of the present disclosure, thecommunication system according to any one of the first to sixth aspectsfurther comprises a control device including an electronic controllerconfigured to control the first communication device, the secondcommunication device, and the third communication device. In thecommunication system according to the seventh aspect, the electroniccontroller allows for appropriate communication.

In accordance with an eighth aspect of the present disclosure, thecommunication system according to the seventh aspect is configured sothat the electronic controller is further configured to send the firstinformation to the second communication device on a wireless signal or awire signal. In the communication system according to the eighth aspect,appropriate communication is performed using a wireless signal or a wiresignal.

In accordance with a ninth aspect of the present disclosure, thecommunication system according to the eighth aspect is configured sothat the electronic controller is further configured to send the firstinformation to the second communication device on a wire signal in acase where the operating device and the transmission device arewire-connected, and the electronic controller is further configured tooutput the first information on a wireless signal in a case where theoperating device and the transmission device are not wire-connected. Inthe communication system according to the ninth aspect, appropriatecommunication is performed using a wireless signal or a wire signal.

In accordance with a tenth aspect of the present disclosure, thecommunication system according to the eighth or ninth aspect isconfigured so that the electronic controller is further configured tosend the second information to the third communication device on awireless signal or a wire signal. In the communication system accordingto the tenth aspect, appropriate communication is performed using awireless signal or a wire signal.

In accordance with an eleventh aspect of the present disclosure, thecommunication system according to the tenth aspect is configured so thatthe electronic controller is further configured to send the secondinformation to the third communication device on a wire signal in a casewhere the transmission device and the component are wire-connected, andthe electronic controller is further configured to output the secondinformation on a wireless signal in a case where the transmission deviceand the component are not wire-connected. In the communication systemaccording to the eleventh aspect, appropriate communication is performedusing a wireless signal or a wire signal.

In accordance with a twelfth aspect of the present disclosure, thecommunication system according to the eleventh aspect is configured sothat the electronic controller is further configured to control thesecond communication device so that the second communication devicereceives the first information output on a wireless signal and sends thesecond information output on a wired signal to the third communicationdevice. In the communication system according to the twelfth aspect, theelectronic controller allows for appropriate communication.

In accordance with a thirteenth aspect of the present disclosure, thecommunication system according to any one of the seventh to twelfthaspects further comprises a battery that supplies electric power to atleast one of the operating device, the transmission device, and thecomponent. The electronic controller is further configured to controlthe supply of electric power from the battery. In the communicationsystem according to the thirteenth aspect, the electronic controllerappropriately controls at least one of the operating device, thetransmission device, and the component.

In accordance with a fourteenth aspect of the present disclosure, thecommunication system according to the thirteenth aspect is configured sothat the electronic controller is further configured to control thesupply of electric power from the battery to at least one of theoperating device, the transmission device, and the component based on atleast one of the first information and the second information. In thecommunication system according to the fourteenth aspect, the electroniccontroller appropriately controls at least one of the operating device,the transmission device, and the component.

In accordance with a fifteenth aspect of the present disclosure, thecommunication system according to the thirteenth or fourteenth aspect isconfigured so that the battery includes a first battery that isconfigured to supply electric power to the operating device and thecomponent and a second battery that is configured to supply electricpower to the transmission device. The electronic controller is furtherconfigured to control the supply of electric power from the firstbattery and the second battery based on at least one of the firstinformation and the second information. In the communication systemaccording to the fifteenth aspect, the electronic controllerappropriately controls at least one of the operating device, thetransmission device, and the component.

In accordance with a sixteenth aspect of the present disclosure, acontrol system comprises a first communication device configured to beconnected to an operating device mounted on a human-powered vehicle, asecond communication device configured to be connected to a transmissiondevice of the human-powered vehicle, a third communication deviceconfigured to be connected to a component that is mounted on thehuman-powered vehicle and that differs from the transmission device, andan electronic controller configured to control the first communicationdevice, the second communication device, and the third communicationdevice. The electronic controller is further configured to control thefirst communication device to output first information in response tooperation of the operating device. The electronic controller is furtherconfigured to control the second communication device to receive thefirst information and output second information including at least someof the first information. The electronic controller is furtherconfigured to control the third communication device to receive thesecond information. In the control system according to the sixteenthaspect, the electronic controller allows for appropriate communicationof the first communication device connected to the operating device withthe third communication device connected to the component.

In accordance with a seventeenth aspect of the present disclosure, thecontrol system according to the sixteenth aspect is configured so thatthe component includes a motor configured to apply a propulsion force tothe human-powered vehicle. The control system according to theseventeenth aspect allows the first communication device connected tothe operating device to appropriately communicate with the thirdcommunication device connected to the motor.

In accordance with an eighteenth aspect of the present disclosure, thecontrol system according to the sixteenth or seventeenth aspect isconfigured so that the system device is provided on a steering mechanismof the human-powered vehicle, and the steering mechanism includes ahandlebar. The control system according to the eighteenth aspect allowsthe operating device to be located at an appropriate position. Thisimproves the usability.

The communication system and the control system according to the presentdisclosure perform appropriate communication.

BRIEF DESCRIPTION OF THE DRAWINGS

Referring now to the attached drawings which form a part of thisoriginal disclosure.

FIG. 1 is a side elevational view of a human-powered vehicle including acommunication system and a control system in accordance with a firstembodiment.

FIG. 2 is a block diagram showing an electrical connection relationshipbetween the control device and various components in accordance with thefirst embodiment.

FIG. 3 is a flowchart showing an example of control executed by anelectronic controller of the first embodiment.

FIG. 4 is a block diagram showing an electrical connection relationshipbetween a control device and various components in accordance with asecond embodiment.

FIG. 5 is a flowchart showing an example of control executed by a firstelectronic controller of the second embodiment.

FIG. 6 is a flowchart showing an example of control executed by a secondelectronic controller of the second embodiment.

FIG. 7 is a flowchart showing an example of control executed by a thirdelectronic controller of the second embodiment.

FIG. 8 is a block diagram showing an electrical connection relationshipbetween a control device and various components in accordance with athird embodiment.

FIG. 9 is a block diagram showing an electrical connection relationshipbetween a control device and various components in accordance with afourth embodiment.

FIG. 10 is a block diagram showing an electrical connection relationshipbetween a control device and various elements in a modified embodiment.

DETAILED DESCRIPTION OF EMBODIMENTS

Selected embodiments will now be explained with reference to thedrawings. It will be apparent to those skilled in the bicycle field fromthis disclosure that the following descriptions of the embodiments areprovided for illustration only and not for the purpose of limiting theinvention as defined by the appended claims and their equivalents.

First Embodiment

A human-powered vehicle A including a communication system 10 will nowbe described with reference to FIGS. 1 to 3. A human-powered vehiclerefers to a vehicle that at least partially uses human force as a primemover to travel, and includes vehicles that assist human force withelectric power. The human-powered vehicle does not include vehiclesusing only a prime mover that is not human force. In particular, thehuman-powered vehicle does not include vehicles that use only aninternal combustion engine as the prime mover. The human-powered vehicleis generally assumed to be a small, light vehicle that does nottypically require a license for driving on a public road. Morespecifically, the illustrated human-powered vehicle A is a trekkingbike. The human-powered vehicle A further includes a frame A1, a frontfork A2, a wheel W, a handlebar H, and a drivetrain B. The wheel Wincludes a front wheel WF and a rear wheel WR.

The drivetrain B is of, for example, a chain-drive type. The drivetrainB includes a crank C, a front sprocket assembly D1, a rear sprocketassembly D2, and a chain D3. The crank C includes a crank axle C1rotatably supported by the frame A1 and two crank arms C2 respectivelyprovided on opposite ends of a crank axle C1. A pedal PD is rotatablycoupled to the distal end of each crank arm C2. The drivetrain B can beof any type such as a belt-drive type or a shaft-drive type.

The front sprocket assembly D1 is provided on the crank C to rotateintegrally with the crank axle C1. The rear sprocket assembly D2 isprovided on a hub HR of the rear wheel WR. The chain D3 runs around thefront sprocket assembly D1 and the rear sprocket assembly D2. A humandriving force applied to the pedals PD by an occupant who is riding thehuman-powered vehicle A is transmitted via the front sprocket assemblyD1, the chain D3, and the rear sprocket assembly D2 to the rear wheelWR.

The communication system 10 includes a first communication device 12, asecond communication device 14 and a third communication device 16.Unless otherwise expressly limited, the term “communication device” asused herein refers to hardware capable of transmitting and/or receivingan analog or digital signal either by a wire or wirelessly. The term“communication device” does not include a human. The term “wirelesscommunication device” as used herein refers to hardware capable oftransmitting and/or receiving an analog or digital signal wirelessly,while the term “wired communication device” as used herein refers tohardware capable of transmitting and/or receiving an analog or digitalsignal via a wire.

The first communication device 12 is configured to be connected to anoperating device 20 mounted on the human-powered vehicle A. The secondcommunication device 14 is configured to be connected to a transmissiondevice 30 of the human-powered vehicle A. The third communication device16 is configured to be connected to a component 40 of the human-poweredvehicle A differing from the transmission device 30. The thirdcommunication device 16 is connected to the component 40 that is mountedon the human-powered vehicle A and that differs from the operatingdevice 20 and the transmission device 30. The operating device 20, thetransmission device 30, and the component 40 are mounted on the singlehuman-powered vehicle A. The component 40 has a configuration mounted onthe human-powered vehicle A that differs from the operating device 20and the transmission device 30. In the communication system 10, thesecond communication device 14 receives first information that is sentfrom the first communication device 12 in response to operation of theoperating device 20, and the third communication device 16 of thecomponent 40 receives second information that includes at least some ofthe first information sent from the second communication device 14.

The first communication device 12 includes at least a transmitterconfigured to transmit a signal that includes information. Preferably,the first communication device 12 also includes a receiver configured toreceive a signal that includes information. The second communicationdevice 14 includes both a transmitter configured to transmit a signalthat includes information and a receiver configured to receive a signalthat includes information. The third communication device 16 includes atleast a receiver configured to receive a signal that includesinformation. Preferably, the third communication device 16 also includesa transmitter configured to transmit a signal that includes information.The first communication device 12 and the second communication device 14are connected to perform wired or wireless communication with eachother. The first communication device 12 and the second communicationdevice 14 communicate with each other through, for example, power linecommunication (PLC), a controller area network (CAN), or a universalasynchronous receiver/transmitter (UART). The second communicationdevice 14 and the third communication device 16 are connected to performwired or wireless communication with each other.

The communication system 10 further includes a battery BT that supplieselectric power to at least one of the operating device 20, thetransmission device 30, and the component 40. The operating device 20and the component 40 are connected by a power line. The operating device20 and the battery BT can be connected by a power line. The battery BTincludes one or more battery elements. The battery elements include arechargeable battery.

The human-powered vehicle A also includes a control device 50. Thecontrol device 50 includes an electronic controller 52 and storage 54.As explained below, the electronic controller 52 can control thecommunication system 10, the transmission device 30 and the component40. The storage 54 stores various types of information. The controldevice 50 and the communication system 10 constitutes a control systemCS for the human-powered vehicle A. The electronic controller 52 isformed of one or more semiconductor chips that are mounted on a circuitboard. The term “electronic controller” as used herein refers tohardware that executes a software program, and does not include a human.Hereinafter, the electronic controller 52 will be simply referred to asthe controller 52.

The battery BT is connected to the controller 52 of the control device50 to perform wired or wireless communication with the controller 52.The battery BT and the controller 52 of the control device 50 can beconnected by connection terminals. In a case where the controller 52 ofthe control device 50 is provided on the battery BT, the thirdcommunication device 16 of the component 40 and the controller 52 can bewire-connected. The battery BT can include a first battery BT1 thatsupplies electric power to the operating device 20 and the component 40and the second battery BT2 that supplies electric power to thetransmission device 30. At least one of the first battery BT1 and thesecond battery BT2 can be configured to supply electric power to all ofthe operating device 20, the transmission device 30, and the component40. The operating device 20 and the transmission device 30 can beconnected by a power line. In a case where the operating device 20 isnot connected to the first battery BT1 and the second battery BT2 by apower line, the battery BT can further include a third battery BT3 thatsupplies electric power to the operating device 20. The third batteryBT3 supplies electric power to the operating device 20, for example, ina case where the operating device 20 performs wireless communicationwith the transmission device 30.

In an example, the first battery BT1 and the second battery BT2 havedifferent power capacities. In a case where the transmission device 30is electrically connected to the first battery BT1 and the secondbattery BT2, the controller 52 can be configured to give priority to thebattery BT having the larger power capacity for supplying electric powerto the transmission device 30. In a case where the component 40 iselectrically connected to the first battery BT1 and the second batteryBT2, the controller 52 can be configured to give priority to the batteryBT having the larger power capacity for supplying electric power to thecomponent 40. In an example, the power capacity of the first battery BT1is larger than the power capacity of the second battery BT2. Thetransmission device 30 and the component 40 can be electricallyconnected to the first battery BT1. In this configuration, in a casewhere the amount of power in the first battery BT1 is less than apredetermined value, the priority for being supplied with electric powercan be given to one of the transmission device 30 and the component 40.Preferably, the first battery BT1 and the second battery BT2 areconnected by a power line. The first battery BT1 and the second batteryBT2 are configured so that in a case where the amount of power in one ofthe first battery BT1 and the second battery BT2 is less than thepredetermined value, the power is supplied from the other one of thefirst battery BT1 and the second battery BT2.

The human-powered vehicle A includes the operating device 20, thetransmission device 30, and the component 40, which differs from theoperating device 20 and the transmission device 30. The component 40includes a motor unit 42 configured to apply a propulsion force to thehuman-powered vehicle A. Preferably, the component 40 further includesat least one of a brake device 44, a suspension 46, and an adjustableseatpost 48.

The operating device 20 outputs a predetermined signal in accordancewith operation of the user. The operating device 20 is provided on asteering mechanism of the human-powered vehicle A. The steeringmechanism includes the handlebar H. The operating device 20 includes atleast a shift operating device that operates the transmission device 30.The shift operating device includes at least one of a shifter and aswitch. The shift operating device outputs a signal includinginformation related to shifting that controls the transmission device 30in accordance with operation of the user. The shift operating devicesends a signal including information related to shifting via the firstcommunication device 12. The operating device 20 further includes acomponent operating device that operates the component 40 of thehuman-powered vehicle A. In a case where the component 40 includes themotor unit 42, the component operating device sends a signal includinginformation related to an output of a motor in relation to human drivingforce via the first communication device 12. In a case where thecomponent 40 includes the brake device 44, the component operatingdevice sends a signal including information related to braking via thefirst communication device 12. In a case where the component 40 includesthe suspension 46, the component operating device sends a signalincluding information related to actuation of the suspension 46 via thefirst communication device 12. In a case where the component 40 includesthe adjustable seatpost 48, the component operating device sends asignal including information related to height of the adjustableseatpost 48 via the first communication device 12. The firstcommunication device 12 connected to the operating device 20 can be asingle first communication device 12 connected to two or more operatingdevices 20 or can be two or more first communication units 12 connectedto two or more operating devices 20.

The transmission device 30 includes an external transmission device. Theexternal transmission device is configured to change a transmissionratio, which is defined by at least one of the number of teeth and thediameter of each of a front sprocket and a rear sprocket around whichthe chain D3 runs. The front sprocket is part of the front sprocketassembly D1 including one or more front sprockets. The rear sprocket ispart of the rear sprocket assembly D2 including one or more rearsprockets. In an example, the transmission device 30 includes at leastone of a front derailleur 32 and a rear derailleur 34. The frontderailleur 32 is provided in the vicinity of the front sprocket assemblyD1. The front derailleur 32 is actuated to change the front sprocket onwhich the chain D3 runs, thereby changing transmission ratio. Thetransmission ratio is determined based on the relationship between thenumber of teeth on the front sprocket and the number of teeth on therear sprocket. In an example, the transmission ratio is determined bythe ratio of a rotational speed of the rear sprocket to a rotationalspeed of the front sprocket. More specifically, the transmission ratiois defined by the ratio of the number of teeth on the front sprocket tothe number of teeth on the rear sprocket. The rear derailleur 34 isprovided on a rear end A3 of the frame A1. The rear derailleur 34 isactuated to change the rear sprocket on which the chain D3 runs, therebychanging the transmission ratio. The transmission device 30 can includean internal transmission device instead of the external transmissiondevice. In this case, the internal transmission device is provided on,for example, the hub HR of the rear wheel WR. The transmission device 30can include a stepless transmission device instead of the externaltransmission device. In this case, the stepless transmission device isprovided on, for example, the hub HR of the rear wheel WR. Thetransmission device 30 changes the transmission ratio of thehuman-powered vehicle A in accordance with an operating signal from theshift operating device.

The motor unit 42 is actuated to assist in propulsion of thehuman-powered vehicle A. The motor unit 42 is actuated in accordancewith, for example, human driving force applied to the pedals PD. Themotor unit 42 includes a motor such as an electric motor. The motor unit42 is actuated by electric power supplied from the battery BT mounted onthe human-powered vehicle A. The component operating device includes amotor unit operating device that operates the motor unit 42. The motorunit operating device outputs an operating signal that changes a controlstate of the motor unit 42 and assisting force.

The brake device 44 includes brake devices 44, the number of whichcorresponds to the number of wheels W. The brake device 44 includes abrake device 44 corresponding to the front wheel WF and a brake device44 corresponding to the rear wheel WR. The two brake devices 44 can havethe same configuration. Each brake device 44 is, for example, a rimbrake device that brakes a rim of the human-powered vehicle A. Thecomponent operating device includes a brake operating device. Each brakedevice 44 is electrically driven based on a signal that is output inresponse to corresponding operation of the brake operating device. Eachbrake device 44 can be a disc brake device that brakes a disc brakerotor mounted on the human-powered vehicle A.

The suspension 46 includes at least one of a front suspension and a rearsuspension. The front suspension is actuated to dampen an impact thatthe front wheel WF receives from the ground. The rear suspension isactuated to dampen an impact that the rear wheel WR receives from theground. The component operating device includes a suspension operatingdevice. Each suspension 46 is electrically driven in accordance withcorresponding operation of the suspension operating device. Morespecifically, at least one of the movement state, travel amount, dampingforce, and repulsive force of each suspension 46 is changed based on anoperating signal that is output in response to corresponding operationof the suspension operating device.

The adjustable seatpost 48 is actuated to change the height of a saddlerelative to the frame A1. The component operating device includes anadjustable seatpost operating device. The adjustable seatpost 48 iselectrically driven based on an operating signal that is output inresponse to operation of the adjustable seatpost operating device.

Since the control device 50 is used to control the first communicationdevice 12, the second communication device 14, and the thirdcommunication device 16, the control device 50 can be considered to bepart of the communication system 10. Stated differently, thecommunication system 10 further includes the control device 50 thatincludes the controller 52, which is configured to control the firstcommunication device 12, the second communication device 14, and thethird communication device 16. The controller 52 controls at least oneof the operating device 20 mounted on the human-powered vehicle A, thetransmission device 30, and the component 40 mounted on thehuman-powered vehicle A.

The controller 52 includes at least one of a central processing device(CPU) and a micro processing device (MPU), Thus, the controller 52includes at least one processor and at least one computer storage device(i.e., computer memory devices). The controller 52 can also control thetransmission device 30 in accordance with operation of the shiftoperating device. The control device 50 further includes the storage 54that stores various types of information. The storage 54 is any computerstorage device or any non-transitory computer-readable medium with thesole exception of a transitory, propagating signal. For example, thestorage 54 includes a nonvolatile memory and a volatile memory. Thenonvolatile memory includes, for example, at least one of a read-onlymemory (ROM), an erasable programmable read only memory (EPROM), anelectrically erasable programmable read-only memory (EEPROM), and aflash memory. The volatile memory includes, for example, a random accessmemory (RAM). The storage 54 stores, for example, various types ofprograms used for control and predetermined information.

In a first example, the control device 50 is provided on at least thetransmission device 30. The control device 50 is provided on at leastone of the front derailleur 32 and the rear derailleur 34. Thecontroller 52 receives the first information via the secondcommunication device 14 through wired or wireless communication. Thecontroller 52 is configured so that the second communication device 14sends a signal including the second information through wired orwireless communication and so that the third communication device 16,which is provided on the component 40, receives the signal sent from thesecond communication device 14. In the first example, each of theoperating device 20 and the component 40 includes an electroniccontroller that differs from the controller 52 of the control device 50.In a second example, the control device 50 is provided on the component40. In a case where the component 40 includes the motor unit 42, thecontrol device 50 is provided, for example, on the motor unit 42. In anexample, the control device 50 is accommodated in a housing 42A of themotor unit 42. In the second example, each of the operating device 20and the transmission device 30 includes an electronic controller thatdiffers from the controller 52 of the control device 50. The controller52 receives a signal including the second information via the thirdcommunication device 16 through wired or wireless communication. In athird example, the control device 50 is provided on the battery BT. Inthe third example, the controller 52 can be arranged in a housing of thebattery BT and be connected to the battery BT by terminals. In the thirdexample, the controller 52 controls the battery BT and the component 40based on information received by the third communication device 16. Thecontroller 52 can be configured to send information related to controlto an electronic controller that differs from the controller 52 providedon the component 40 through wired or wireless communication, and thecontroller 52 can be configured to process information included in asignal received by the third communication device 16 provided on thecomponent 40 and send the signal to a further controller of thecomponent 40. In this case, a signal that includes third information canbe sent to the third communication device 16 provided on the component40 based on a signal from the controller 52. The control device 50 isactuated by electric power supplied from the battery BT. The controldevice 50 is configured to perform wired or wireless communication withat least one of the first communication device 12, the secondcommunication device 14, and the third communication device 16. FIG. 2discloses the configuration of the first example of the control device50.

The controller 52 controls the first communication device 12 to outputthe first information in response to operation of the operating device20. The controller 52 controls the second communication device 14 toreceive the first information and output the second informationincluding at least some of the first information. The controller 52controls the third communication device 16 to receive the secondinformation.

The first information and the second information will be described. Thefirst information and the second information include at least one ofinformation related to the transmission device 30 and informationrelated to the component 40. The information related to the transmissiondevice 30 includes at least one of information related to a controlstate of the transmission device 30 and information for the controller52 to control the transmission device 30. The information related to thecontrol state of the transmission device 30 includes information of thepresent transmission ratio. The information for the controller 52 tocontrol the transmission device 30 includes information of an operatingsignal related to the changing of the transmission ratio. Theinformation related to the component 40 includes at least one ofinformation related to a control state of the component 40 andinformation for the controller 52 to control the component 40. In a casewhere the component 40 includes the motor unit 42, information relatedto the motor unit 42 includes at least one of information related to acontrol state of the motor unit 42 and information for the controller 52to control the motor unit 42. The control state of the motor unit 42includes a first control state and a second control state that differsin assisting force from the first control state. Assisting forceincludes at least one of a maximum output value of the motor, a minimumoutput value of the motor, a maximum output torque of the motor, aminimum output torque of the motor, a response speed of the motor, aratio of a motor output to human torque that is input to thehuman-powered vehicle A, and driving force of the motor in relation tohuman driving force that is input to the human-powered vehicle A. Theinformation for the controller 52 to control the motor unit 42 includesinformation related to assisting force.

In a first example, the first information conforms to the secondinformation. In an example, the first information and the secondinformation include the information related to the transmission device30 and the information related to the component 40. In another example,the first information and the second information include one of theinformation related to the transmission device 30 and the informationrelated to the component 40. In a second example, the first informationdiffers from the second information. The controller 52 is configured tochange the contents of the second information. In an example, the firstinformation includes the information related to the transmission device30 and the information related to the component 40, and the secondinformation includes only the information related to the component 40.In another example, the first information includes only the informationrelated to the transmission device 30, and the second informationincludes the information related to the transmission device 30 and theinformation related to the component 40.

A sending process of the first information and the second informationexecuted by the controller 52 will be described. The controller 52 sendsthe first information to the second communication device 14 on awireless signal or a wire signal. The controller 52 sends the firstinformation from the transmitter of the first communication device 12.The controller 52 sends the first information to the secondcommunication device 14 on a wire signal in a case where the operatingdevice 20 and the transmission device 30 are wire-connected. Thecontroller 52 outputs the first information on a wireless signal in acase where the operating device 20 and the transmission device 30 arenot wire-connected.

The controller 52 sends the second information to the thirdcommunication device 16 on a wireless signal or a wire signal. Thecontroller 52 sends the second information from the transmitter of thesecond communication device 14. The controller 52 sends the secondinformation to the third communication device 16 on a wire signal in acase where the transmission device 30 and the component 40 arewire-connected. The controller 52 outputs the second information on awireless signal in a case where the transmission device 30 and thecomponent 40 are not wire-connected.

The controller 52 can send any combination of a wire signal and awireless signal. In a first example, the controller 52 controls thesecond communication device 14 so that the second communication device14 receives the first information output from the first communicationdevice 12 on a wire signal and sends the second information output fromthe second communication device 14 to the third communication device 16on a wire signal. In a second example, the controller 52 controls thesecond communication device 14 so that the second communication device14 receives the first information output from the first communicationdevice 12 on a wireless signal and sends the second information outputfrom the second communication device 14 to the third communicationdevice 16 on a wireless signal. In a third example, the controller 52controls the second communication device 14 so that the secondcommunication device 14 receives the first information output from thefirst communication device 12 on a wire signal and sends the secondinformation output from the second communication device 14 to the thirdcommunication device 16 on a wireless signal. In a fourth example, thecontroller 52 controls the second communication device 14 so that thesecond communication device 14 receives the first information outputfrom the first communication device 12 on a wireless signal and sendsthe second information output from the second communication device 14 tothe third communication device 16 on a wire signal.

Control of the operating device 20, the transmission device 30, and thecomponent 40 executed by the controller 52 will now be described. Thecontroller 52 controls the supply of electric power from the battery BT.The controller 52 controls the supply of electric power from the batteryBT to at least one of the operating device 20, the transmission device30, and the component 40 based on at least one of the first informationand the second information. In an example, in a case where at least oneof the first information and the second information includes theinformation related to the transmission device 30, the controller 52supplies electric power to the operating device 20 and the transmissiondevice 30 from the battery BT. In a case where each of the firstinformation and the second information includes the information relatedto the transmission device 30, the controller 52 changes the amount ofpower supplied from the battery BT to at least one of the operatingdevice 20 and the transmission device 30 from that in a case where theinformation related to the transmission device 30 is not included. In anexample, in a case where the first communication device 12 of theoperating device 20 and the second communication device 14 of thetransmission device 30 are wire-connected and the information related tothe transmission device 30 is included, the controller 52 increases theamount of power supplied to the operating device 20 and the transmissiondevice 30 as compared to in a case where the information related to thetransmission device 30 is not included. In a case where the firstcommunication device 12 of the operating device 20 and the secondcommunication device 14 of the transmission device 30 arewireless-connected and the information related to the transmissiondevice 30 is included, the controller 52 increases the amount of powersupplied to the transmission device 30 as compared to in a case wherethe information related to the transmission device 30 is not included.While electric power is supplied from the battery BT, the controller 52controls the electric power to be supplied to the operating device 20.In a case where the second information includes the information relatedto the component 40, the controller 52 supplies electric power to thecomponent 40 from the battery BT. In a case where the second informationdoes not include the information related to the component 40, thecontroller 52 can change the amount of power supplied to the component40 from the battery BT from that in a case where the second informationincludes the information related to the component 40.

The controller 52 controls the supply of electric power from the firstbattery BT1 and the second battery BT2 based on at least one of thefirst information and the second information. In an example, in a casewhere at least one of the first information and the second informationincludes the information related to the transmission device 30, thecontroller 52 supplies electric power from the second battery BT2 to thetransmission device 30. In a case where each of the first informationand the second information includes the information related to thetransmission device 30, the controller 52 changes the amount of powersupplied to the transmission device 30 from the second battery BT2 fromthat in a case where the information related to the transmission device30 is not included. In an example, in a case where the informationrelated to the transmission device 30 is included, the controller 52increases the amount of power supplied to the transmission device 30 ascompared to in a case where the information related to the transmissiondevice 30 is not included. In a case where the second informationincludes the information related to the component 40, the controller 52supplies electric power from the first battery BT1 to the component 40.In a case where the second information does not include the informationrelated to the component 40, the controller 52 can change the amount ofpower supplied from the first battery BT1 to the component 40 from thatin a case where the second information includes the information relatedto the component 40.

The controller 52 controls the transmission device 30 and the component40 based on at least one of the first information and the secondinformation. In an example, in a case where at least one of the firstinformation and the second information includes information forcontrolling the transmission device 30, the transmission device 30 iscontrolled based on the information for controlling the transmissiondevice 30. In a case where the second information includes informationfor controlling the component 40, the controller 52 controls thecomponent 40 based on the information for controlling the component 40.

An example of control executed by the controller 52 of the firstembodiment will now be described with reference to FIG. 3. Whileelectric power is supplied from the battery BT, the controller 52cyclically executes the process from steps S11 to S18.

In step S11, the controller 52 determines whether the operating device20 is operated. In a case where the determination is affirmative, thecontroller 52 executes step S12. In a case where the determination isnegative, the controller 52 again executes step S11.

In step S12, the controller 52 determines whether the operating device20 and the transmission device 30 are wire-connected. The controller 52can, for example, detect which one of the batteries BT is supplyingelectric power to the operating device 20 to determine whether theoperating device 20 and the transmission device 30 are wire-connected.In a case where the determination is affirmative, the controller 52executes step S13. In a case where the determination is negative, thecontroller 52 executes step S14.

In step S13, the controller 52 outputs the first information from thefirst communication device 12 on a wire signal. Subsequent to step S13,the controller 52 executes step S15. In step S14, the controller 52outputs the first information from the first communication device 12 ona wireless signal. Subsequent to step S14, the controller 52 executesstep S15.

In step S15, the controller 52 determines whether the transmissiondevice 30 and the component 40 are wire-connected. In a case where thedetermination is affirmative, the controller 52 executes step S16. In acase where the determination is negative, the controller 52 executesstep S17.

In step S16, the controller 52 outputs the second information from thesecond communication device 14 on a wire signal. Subsequent to step S16,the controller 52 executes step S18. In step S17, the controller 52outputs the second information from the second communication device 14on a wireless signal. Subsequent to step S17, the controller 52 executesstep S18.

In step S18, the controller 52 controls the transmission device 30 andthe component 40 based on at least one of the first information and thesecond information. Subsequent to step S18, the controller 52 ends thecontrol.

Second Embodiment

A second embodiment of the communication system 10 and the controldevice 50 will be described with reference to FIGS. 4 to 7. Thecommunication system 10 and the control device 50 of the secondembodiment is the same as the communication system 10 and the controldevice 50 of the first embodiment except for the configurations of thecontroller 52 and the battery BT. Same reference characters are given tothose configurations that are the same as the correspondingconfigurations of the first embodiment. Such configurations will not bedescribed in detail.

As shown in FIG. 4, the controller 52 includes a first controller 52A, asecond controller 52B, and a third controller 52C. The first controller52A controls the operating device 20, the first communication device 12connected to the operating device 20, and a notification device 56. Thesecond controller 52B controls the transmission device 30 and the secondcommunication device 14 connected to the transmission device 30. Thethird controller 52C controls the component 40 and the thirdcommunication device 16 connected to the component 40.

The first controller 52A is provided on the operating device 20. Thefirst controller 52A outputs the first information in response tooperation of the operating device 20. In a case where the firstcommunication device 12 receives the third information, the firstcontroller 52A controls the notification device 56 so that the thirdinformation is indicated on the notification device 56.

The notification device 56 includes an indicator. The indicatorincludes, for example, an indication panel. The notification device 56includes, for example, at least one of a portable electronic device, adisplay, a smartphone, a tablet computer, and a cycle computer. Thenotification device 56 can include a speaker. The notification device 56is configured to perform wired or wireless communication with at leastthe first communication device 12.

The battery BT further includes the third battery BT3 that supplieselectric power to at least one of the first communication device 12, theoperating device 20, the first controller 52A, and the notificationdevice 56. The third battery BT3 has a smaller power capacity than thefirst battery BT1 and the second battery BT2. In an example, the thirdbattery BT3 includes a lithium-ion battery. In another example, thethird battery BT3 includes a button cell or coin battery.

The second controller 52B is provided on the transmission device 30. Inan example, the second controller 52B is provided on one of the frontderailleur 32 and the rear derailleur 34. The second controller 52Bcontrols the transmission device 30. In a case where the firstinformation is received, the second controller 52B outputs the secondinformation to the third communication device 16. In a case where thethird information is received, the second controller 52B outputs thethird information to the first communication device 12.

The third controller 52C is provided on the component 40. In a casewhere multiple components 40 are provided on the human-powered vehicleA, the third controller 52C can be provided on each component 40 or oneof the components 40. The third controller 52C controls the component40. The third controller 52C sends the third information from the thirdcommunication device 16. In a case where the third communication device16 performs wired communication with the second communication device 14,the third controller 52C outputs the third information from the thirdcommunication device 16 to the second communication device 14. The thirdinformation includes information related to a state of the component 40.In an example, in a case where the component 40 includes the motor unit42, information related to the control state of the motor and assistingforce is included. In a case where the component 40 includes the brakedevice 44, information related to braking force is included. In a casewhere the component 40 includes the suspension 46, information relatedto the movement state, travel amount, damping force, and repulsive forceis included. In a case where the component 40 includes the adjustableseatpost 48, information related to the height of the saddle relative tothe frame A1 is included.

An example of control executed by the first controller 52A will now bedescribed with reference to FIG. 5. While electric power is suppliedfrom the battery BT, the first controller 52A repeatedly executes theprocess from steps S21 to S26.

In step S21, the first controller 52A determines whether the operatingdevice 20 is operated. In a case where the determination is affirmative,the first controller 52A executes step S22. In a case where thedetermination is negative, the first controller 52A executes step S25.

The process from steps S22 to S24 executed by the first controller 52Ais the same as the process from steps S12 to S14 executed by thecontroller 52 of the first embodiment.

In step S25, the first controller 52A determines whether the thirdinformation is received. In a case where the determination isaffirmative, the first controller 52A executes step S26. In a case wherethe determination is negative, the first controller 52A ends thecontrol.

In step S26, the first controller 52A outputs the third information tothe notification device 56. Subsequent to step S26, the first controller52A ends the control.

An example of control executed by the second controller 52B will now bedescribed with reference to FIG. 6. While electric power is suppliedfrom the battery BT, the second controller 52B repeatedly executes theprocess from steps S31 to S37.

In step S31, the second controller 52B determines whether the firstinformation is received. In a case where the determination isaffirmative, the second controller 52B executes step S32. In a casewhere the determination is negative, the second controller 52B executesstep S36.

The process from steps S32 to S34 executed by the second controller 52Bis the same as the process from steps S15 to S17 executed by thecontroller 52 of the first embodiment.

In step S35, the second controller 52B controls the transmission device30 based on the first information. Subsequent to step S35, the secondcontroller 52B executes step S36.

In step S36, the second controller 52B determines whether the thirdinformation is received. In a case where the determination isaffirmative, the second controller 52B executes step S37. In a casewhere the determination is negative, the second controller 52B ends thecontrol.

In step S37, the second controller 52B outputs the third informationfrom the second communication device 14 to the first communicationdevice 12. Subsequent to step S37, the second controller 52B ends thecontrol.

An example of control executed by the third controller 52C will now bedescribed with reference to FIG. 7. While electric power is suppliedfrom the battery BT, the third controller 52C repeatedly executes theprocess from steps S41 to S44.

In step S41, the third controller 52C determines whether the secondinformation is received. In a case where the determination isaffirmative, the third controller 52C executes step S42. In a case wherethe determination is negative, the third controller 52C ends thecontrol.

In step S42, the third controller 52C determines whether the informationrelated to the component 40 is included. In a case where thedetermination is affirmative, the third controller 52C executes stepS43. In a case where the determination is negative, the third controller52C ends the control.

In step S43, the third controller 52C controls the component 40 based onthe second information. Subsequent to step S43, the third controller 52Cexecutes step S44.

In step S44, the third controller 52C outputs the third information fromthe third communication device 16 toward the second communication device14. Subsequent to step S44, the third controller 52C ends the control.

Third Embodiment

A third embodiment of the communication system 10 and the control device50 will be described with reference to FIG. 8. The communication system10 and the control device 50 of the third embodiment further includes afourth communication device 18 provided on the transmission device 30.The same reference characters are given to those configurations that arethe same as the corresponding configurations of the first and secondembodiments. Such configurations will not be described in detail.

The communication system 10 further includes the fourth communicationdevice 18. The fourth communication device 18 is provided on thetransmission device 30. The fourth communication device 18 includes atleast a receiver configured to receive a signal that includesinformation. Preferably, the fourth communication device 18 includes atransmitter configured to transmit a signal that includes information.The fourth communication device 18 is provided on one of the frontderailleur 32 and the rear derailleur 34 of the transmission device 30,and the second communication device 14 is provided on the other one ofthe front derailleur 32 and the rear derailleur 34. In an example, thesecond communication device 14 is provided on the rear derailleur 34,and the fourth communication device 18 is provided on the frontderailleur 32. The fourth communication device 18 is configured toperform wired or wireless communication with the third communicationdevice 16. The fourth communication device 18 can be configured toperform wired or wireless communication with at least one of the firstcommunication device 12 and the second communication device 14. In anexample, the fourth communication device 18 is configured to communicatewith the second communication device 14. In a case where the secondcommunication device 14 is configured to communicate with the thirdcommunication device 16 and the fourth communication device 18, thethird communication device 16 and the fourth communication device 18 canbe configured not to communicate with each other.

Transmission of a signal including information in the communicationsystem 10 of the third embodiment will now be described. Transmissionand reception performed by each communication device is controlled bythe controller 52 of the control device 50 or a controller (not shown)provided on each of the operating device 20, the transmission device 30,and the component 40.

The first communication device 12 performs wired or wirelesscommunication with the second communication device 14 provided on therear derailleur 34. In an example, the first communication device 12performs wireless communication with the second communication device 14.The first communication device 12 sends a signal including firstinformation to the second communication device 14. The first informationincludes at least one of information related to the transmission device30 and information related to the component 40.

The second communication device 14 performs wired or wirelesscommunication with the third communication device 16 provided on thecomponent 40. In an example, the second communication device 14 performswired communication with the third communication device 16. The secondcommunication device 14 sends a signal including second information tothe third communication device 16. The second information includes atleast one of information related to the transmission device 30 andinformation related to the component 40. The second communication device14 can send the second information to the fourth communication device 18through the electrically connected second battery BT2 and a power line.The second battery BT2 further includes a communication device thatincludes both a transmitter configured to transmit a signal includinginformation and a receiver configured to receive a signal includinginformation.

The third communication device 16 communicates with at least one of thefourth communication device 18 provided on the front derailleur 32 andthe second communication device 14. The third communication device 16performs wired or wireless communication with the fourth communicationdevice 18. In an example, the third communication device 16 performswired communication with the fourth communication device 18. In a casewhere the received second information includes the information relatedto the transmission device 30, the third communication device 16 sends asignal including the information related to the transmission device 30to at least one of the second communication device 14 and the fourthcommunication device 18. In a case where the second communication device14 communicates with the fourth communication device 18, the thirdcommunication device 16 can be configured not to perform wired andwireless communication with the fourth communication device 18.

The first battery BT1 supplies electric power to the component 40 andthe third communication device 16. The second battery BT2 supplieselectric power to at least the front derailleur 32, the rear derailleur34, the second communication device 14, and the fourth communicationdevice 18. The third battery BT3 supplies electric power to theoperating device 20 and the first communication device 12. The thirdbattery BT3 includes, for example, a button cell or coin battery. In acase where the first communication device 12 and the secondcommunication device 14 are connected by a power line that allows forpower line communication, the second battery BT2 supplies electric powerto the operating device 20 and the first communication device 12.

Fourth Embodiment

A fourth embodiment of the communication system 10 and the controldevice 50 will be described with reference to FIG. 9. The communicationsystem 10 and the control device 50 of the fourth embodiment do notinclude the second battery BT2 of the third embodiment. Same referencecharacters are given to those configurations that are the same as thecorresponding configurations of the first to third embodiments. Suchconfigurations will not be described in detail.

Transmission of a signal including information in the communicationsystem 10 of the fourth embodiment will now be described. Transmissionand reception performed by each communication device is controlled bythe controller 52 of the control device 50 or a controller (not shown)provided on each of the operating device 20, the transmission device 30,and the component 40.

The first communication device 12 performs wired or wirelesscommunication with the second communication device 14 provided on therear derailleur 34. In an example, the first communication device 12performs wireless communication with the second communication device 14.The first communication device 12 sends a signal including firstinformation to the second communication device 14. The first informationincludes at least one of information related to the transmission device30 and information related to the component 40.

The second communication device 14 performs wired or wirelesscommunication with the third communication device 16 provided on thecomponent 40. In an example, the second communication device 14 performswired communication with the third communication device 16. The secondcommunication device 14 sends a signal including second information tothe third communication device 16. The second information includes atleast one of information related to the transmission device 30 andinformation related to the component 40. The second communication device14 can send the second information to the fourth communication device 18by a power line that electrically connects the second communicationdevice 14 and the fourth communication device 18.

The third communication device 16 communicates with at least one of thefourth communication device 18 provided on the front derailleur 32 andthe second communication device 14. The third communication device 16performs wired or wireless communication with the fourth communicationdevice 18. In an example, the third communication device 16 performswired communication with the fourth communication device 18. In a casewhere the received second information includes the information relatedto the transmission device 30, the third communication device 16 sends asignal including the information related to the transmission device 30to at least one of the second communication device 14 and the fourthcommunication device 18. In a case where the second communication device14 communicates with the fourth communication device 18, the thirdcommunication device 16 can be configured not to perform wired andwireless communication with the fourth communication device 18.

The first battery BT1 supplies electric power to the component 40, thefront derailleur 32, the rear derailleur 34, the second communicationdevice 14, the third communication device 16, and the fourthcommunication device 18. The second battery BT2 is omitted or integratedwith the first battery BT1. The third battery BT3 supplies electricpower to the operating device 20 and the first communication device 12.The third battery BT3 includes, for example, a button cell or coinbattery. In a case where the first communication device 12 and thesecond communication device 14 are connected by a power line that allowsfor power line communication, the first battery BT1 supplies electricpower to the operating device 20 and the first communication device 12.

Modifications

The description related to the above embodiments exemplifies, withoutany intention to limit, applicable forms of a communication system and acontrol device according to the present disclosure. The communicationsystem and the control device according to the present disclosure can beapplied to, for example, modifications of the embodiments that aredescribed below and combinations of at least two of the modifiedexamples that do not contradict each other. In the modificationsdescribed hereinafter, same reference characters are given to thoseelements that are the same as the corresponding elements of the aboveembodiment. Such elements will not be described in detail.

The receiver and the transmitter of the second communication device 14can be configured separately from each other. In an example, thereceiver of the second communication device 14 is provided on the frontderailleur 32, and the transmitter of the second communication device 14is provided on the rear derailleur 34. In another example, the receiverof the second communication device 14 is provided on the rear derailleur34, and the transmitter of the second communication device 14 isprovided on the front derailleur 32.

The third communication device 16 can be provided on the battery BT. Inan example, the third communication device 16 is provided on the firstbattery BT1. The third communication device 16 and the controller 52configured to control the component 40 are wire-connected.

In the communication system 10 of the third embodiment and thecommunication system 10 of the fourth embodiment, in a case where thefirst communication device 12 and the second communication device 14 arewire-connected, wired communication and the wireless communication canbe configured to be switched. Even in a case where the firstcommunication device 12 and the second communication device 14 arewire-connected, the operating device 20 and the controller configured tocontrol the first communication device 12 send a wireless signal to thesecond communication device 14. In this case, electric power can beconfigured to be supplied from one of the first battery BT1 and thesecond battery BT2 that is electrically connected to the operatingdevice 20 and the first communication device 12. Wired communication andwireless communication are configured to be switched, for example, byoperation of the operating device 20.

In the communication system 10 of the third embodiment and thecommunication system 10 of the fourth embodiment, the secondcommunication device 14 and the fourth communication device 18 can beconfigured to perform wired or wireless communication with each other.In this case, a signal including information that is received by one ofthe second communication device 14 and the fourth communication device18 is sent to the other one of the second communication device 14 andthe fourth communication device 18.

FIG. 10 shows a modified embodiment of a communication system 10 inwhich one of the first battery BT1 and the second battery BT2 isconfigured to supply electric power to the operating device 20. Thefirst battery BT1 and the operating device 20 can be configured not tobe directly connected by a power line. The first communication device 12and the second communication device 14 are connected by a power linethat allows for power line communication. One of the first battery BT1and the second battery BT2 supplies electric power to the operatingdevice 20 via the transmission device 30. The second battery BT2 can beomitted. The first battery BT1 can be configured to supply electricpower to only the component 40, and the operating device 20 can beconfigured to be supplied with electric power from only the secondbattery BT2 via the transmission device 30.

In the communication system 10 including the fourth communication device18, both the second communication device 14 and the fourth communicationdevice 18 can receive the first information from the first communicationdevice 12. Alternatively, one of the second communication device 14 andthe fourth communication device 18 that performs wired communicationwith the first communication device 12 can receive the first informationfrom the first communication device 12. It is preferred that one of thesecond communication device 14 and the fourth communication device 18that performs wired communication with the third communication device 16sends an output to the third communication device 16.

Even in a case where the communication system 10 is wire-connected, itcan be configured to output a wireless signal. The controller 52 of thefirst embodiment skips step S12 and executes step S14 subsequent to stepS11. The controller 52 skips step S15 and executes step S17. In thecommunication system 10 of the second embodiment, the first controller52A and the second controller 52B execute the process in the samemanner.

In the second embodiment, one of the first controller 52A, the secondcontroller 52B, and the third controller 52C can be omitted. In a casewhere the first controller 52A is omitted, the second controller 52Bcontrols the first communication device 12 and the second communicationdevice 14. In a case where the second controller 52B is omitted, thefirst controller 52A controls the first communication device 12 and thesecond communication device 14. In a case where the third controller 52Cis omitted, the second controller 52B controls the second communicationdevice 14 and the third communication device 16.

In the second embodiment, the second controller 52B can control thetransmission device 30 based on third information. In an example, thethird information includes information related to output of the motorunit 42. The second controller 52B controls the transmission device 30to decrease the transmission ratio in a case where the output of themotor unit 42 is large, and controls the transmission device 30 toincrease the transmission ratio in a case where the output of the motorunit 42 is small.

In the second embodiment, the second controller 52B can be configured toskip step S35 and, subsequent to step S36, control the transmissiondevice 30 based on the information related to the transmission device 30included in the third information.

In this specification, the phrase “at least one of” as used in thisdisclosure means “one or more” of a desired choice. As one example, thephrase “at least one of” as used in this disclosure means “only onechoice” or “both of two choices” in a case where the number of choicesis two. In another example, in this specification, the phrase “at leastone of” as used in this disclosure means “only one single choice” or“any combination of equal to or more than two choices” if the number ofits choices is equal to or more than three.

What is claimed is:
 1. A communication system comprising: a firstcommunication device configured to be connected to an operating devicemounted on a human-powered vehicle; a second communication deviceconfigured to be connected to a transmission device of the human-poweredvehicle; and a third communication device configured to be connected toa component that is mounted on the human-powered vehicle and thatdiffers from the operating device and the transmission device, thesecond communication device being configured to receive firstinformation that is sent from the first communication device in responseto operation of the operating device, and the third communication deviceof the component being configured to receive second information thatincludes at least some of the first information sent from the secondcommunication device.
 2. The communication system according to claim 1,wherein the component includes a motor device configured to apply apropulsion force to the human-powered vehicle.
 3. The communicationsystem according to claim 1 , wherein the first information conforms tothe second information.
 4. The communication system according to claim3, wherein the first information and the second information include atleast one of information related to the transmission device andinformation related to the component.
 5. The communication systemaccording to claim 3, wherein the first information and the secondinformation include information related to the transmission device andinformation related to the component.
 6. The communication systemaccording to claim 1, wherein the first information includes informationrelated to the transmission device and information related to thecomponent, and the second information includes only information relatedto the component.
 7. The communication system according to claim 1,further comprising a control device including an electronic controllerconfigured to control the first communication device, the secondcommunication device, and the third communication device.
 8. Thecommunication system according to claim 7, wherein the electroniccontroller is further configured to send the first information to thesecond communication device on a wireless signal or a wire signal. 9.The communication system according to claim 8, wherein the electroniccontroller is further configured to send the first information to thesecond communication device on a wire signal in a case where theoperating device and the transmission device are wire-connected, and theelectronic controller is further configured to output the firstinformation on a wireless signal in a case where the operating deviceand the transmission device are not wire-connected.
 10. Thecommunication system according to claim 8 , wherein the electroniccontroller is further configured to send the second information to thethird communication device on a wireless signal or a wire signal. 11.The communication system according to claim 10, wherein the electroniccontroller is further configured to send the second information to thethird communication device on a wire signal in a case where thetransmission device and the component are wire-connected, and theelectronic controller is further configured to output the secondinformation on a wireless signal in a case where the transmission deviceand the component are not wire-connected.
 12. The communication systemaccording to claim 11, wherein the electronic controller is furtherconfigured to control the second communication device so that the secondcommunication device receives the first information output on a wirelesssignal and sends the second information output on a wired signal to thethird communication device.
 13. The communication system according toclaim 7, further comprising a battery that supplies electric power to atleast one of the operating device, the transmission device, and thecomponent, the electronic controller is further configured to controlthe supply of electric power from the battery.
 14. The communicationsystem according to claim 13, wherein the electronic controller isfurther configured to control the supply of electric power from thebattery to at least one of the operating device, the transmissiondevice, and the component based on at least one of the first informationand the second information.
 15. The communication system according toclaim 13, wherein the battery includes a first battery that isconfigured to supply electric power to the operating device and thecomponent and a second battery that is configured to supply electricpower to the transmission device, and the electronic controller isfurther configured to control the supply of electric power from thefirst battery and the second battery based on at least one of the firstinformation and the second information.
 16. A control system comprising:a first communication device configured to be connected to an operatingdevice mounted on a human-powered vehicle; a second communication deviceconfigured to be connected to a transmission device of the human-poweredvehicle; a third communication device configured to be connected to acomponent that is mounted on the human-powered vehicle and that differsfrom the transmission device; and an electronic controller configured tocontrol the first communication device, the second communication device,and the third communication device, the electronic controller beingfurther configured to control the first communication device to outputfirst information in response to operation of the operating device, theelectronic controller being further configured to control the secondcommunication device to receive the first information and output secondinformation including at least some of the first information, and theelectronic controller being further configured to control the thirdcommunication device to receive the second information.
 17. The controlsystem according to claim 16, wherein the component includes a motorconfigured to apply a propulsion force to the human-powered vehicle. 18.The control system according to claim 16, wherein the operating deviceis provided on a steering mechanism of the human-powered vehicle, andthe steering mechanism includes a handlebar.